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True or False: When you add a rule to a DB security group, you do not need to specify port number or protocol.

True or False: When you add a rule to a DB security group, you do not need to specify port number or
protocol.

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A.
Depends on the RDMS used

B.
TRUE

C.
FALSE

15 Comments on “True or False: When you add a rule to a DB security group, you do not need to specify port number or protocol.

  1. Manu says:

    “You do not need to specify a destination port number when you create DB security group rules; the port number defined for the DB instance is used as the destination port number for all rules defined for the DB security group”

    “You should use TCP as the protocol for any VPC security group created to control access to a DB instance. The port number for the VPC security group should be the same port number as that used to create the DB instance




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  2. krish says:

    “You do not need to specify a destination port number when you create DB security group rules; the port number defined for the DB instance is used as the destination port number for all rules defined for the DB security group”
    Answer: C




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  3. Sri says:

    B
    http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.RDSSecurityGroups.html

    DB Security Groups

    Each DB security group rule enables a specific source to access a DB instance that is associated with that DB security group. The source can be a range of addresses (e.g., 203.0.113.0/24), or an EC2 security group. When you specify an EC2 security group as the source, you allow incoming traffic from all EC2 instances that use that EC2 security group. Note that DB security group rules apply to inbound traffic only; outbound traffic is not currently permitted for DB instances.

    You do not need to specify a destination port number when you create DB security group rules; the port number defined for the DB instance is used as the destination port number for all rules defined for the DB security group. DB security groups can be created using the Amazon RDS APIs or the Amazon RDS page of the AWS Management Console.

    For more information about working with DB security groups, see Working with DB Security Groups.




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  4. Vinay Kumar Vishwakarma says:

    Answer : B

    http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.RDSSecurityGroups.html

    Three types of security groups are used with Amazon RDS: DB security groups, VPC security groups, and EC2 security groups.

    You do not need to specify a destination port number when you create DB security group rules; the port number defined for the DB instance is used as the destination port number for all rules defined for the DB security group.




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  5. Linh says:

    B
    DB Security Groups

    DB security groups are used with DB instances that are not in a VPC and on the EC2-Classic platform. Each DB security group rule enables a specific source to access a DB instance that is associated with that DB security group. The source can be a range of addresses (e.g., 203.0.113.0/24), or an EC2 security group. When you specify an EC2 security group as the source, you allow incoming traffic from all EC2 instances that use that EC2 security group. Note that DB security group rules apply to inbound traffic only; outbound traffic is not currently permitted for DB instances.

    You do not need to specify a destination port number when you create DB security group rules; the port number defined for the DB instance is used as the destination port number for all rules defined for the DB security group. DB security groups can be created using the Amazon RDS APIs or the Amazon RDS page of the AWS Management Console.
    http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.RDSSecurityGroups.html




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